Deep Groove Type Ball Bearing that Adds Resistive Torque 1

[Mandrill22]

I'm looking for a bearing, roughly 8mm ID, that would take axial load (about 70 N) and add required torque to rotate. I'm sure it's possible using friction, but don't know where to look. A deep groove ball bearing would be ideal in terms of facilitating rotation and taking the axial load, but there wouldn't be added torque.

 

[Jboggs]

Bearings are anti-friction devices, and you want one that creates friction? Good luck. You will need two separate devices. One for thrust load, and one for friction.

 

[Tmoose]

RPM ? How much added torque, and when? Got room for a Corvette disk brake in the assembly ?

 

[IRstuff]

While a disk brake is one option, others include eddy current brake, or a back EMF mechanism such as a motor winding, which avoid physical contact and generating dust.

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[Compositepro]

As has been noted bearings are designed for minimal friction. In addition to using a brake, another option is to use a much larger-than-needed, sealed bearing. The larger bearing will have more seal friction than a small bearing.

 

[MintJulep]

OP seems to have become uninterested.

Just some flat thrust washers axially loaded would seem to be up to the poorly defined job.

 

[Sparweb]

One last point:
resistance = friction = heat. The faster it goes the hotter it gets. Good luck keeping grease in it.

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